Test Your Designs on All Screen Sizes
Preview your HTML and CSS across multiple device sizes instantly. Switch between mobile, tablet, and desktop views to ensure your design works perfectly on all screens.
Test on iPhone, iPad, Android phones, tablets, and desktop screens. Popular device sizes pre-configured for instant testing.
Toggle between device sizes with one click. See how your responsive CSS breakpoints work in real-time.
Set any custom width and height to test unique screen sizes. Perfect for testing edge cases and specific devices.